To use:
Install and run it.
Delete the entry for WCW Nitro (I heard it was a terrible game anyway)
Bind nitro.exe to Battlezone and add a parameter for 24fps, or
Download the nip files I made for Interstate '76 and Interstate '76 Nitro Pack so the entries won't be completely lost after updating the video card drivers. These can be saved virtually anywhere, such as the Interstate 76 Arsenal folder, since they have to be added in NPI anyway.

When you want to play i76 or nitro simply leave NPI running with the chosen game selected from the drop-down list, then launch the game.

Y'all are welcome to make changes and upload updated versions of these files if you're able to make improvements. One thing I've noticed is NPI all but eliminates sound loop ghosts, where a sound clip gets stuck in a loop and can be heard coming from the location it was originally generated. I used to get around this (with limited success) by having only 7 sound channels turned on, however now I can enjoy all 8 and have only heard a sound loop ghost once since I started using NPI where before it was almost every map.